4) The demand for subassembly S is 100 units in week 7 . Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S,1 week to make T, 2 weeks to make U,2 weeks to make V,3 weeks to make W,1 week to make X,2 weeks to make Y, and 1 week to make Z. Construct a net material requirements plan using the following on-hand inventory